Sermorelin vs. Testosterone: Which Supports Muscle Better?

Sermorelin prompts your pituitary to release its own growth hormone. Testosterone replacement restores a hormone that declines with age. Both support lean mass, but they suit different people.

Sermorelin

Best for recovery, sleep quality, and preserving muscle during a fat-loss phase — especially alongside GLP-1 therapy.

Testosterone

Best for men with clinically low levels who want to build muscle, not just keep it. Requires labs and ongoing monitoring.

Let the scan decide

Your DEXA baseline — particularly appendicular lean mass — helps your provider choose the right path, or a combination.